To observe the microalgae of the Arctic, biogeochemist Clara Hoppe and her team spent months on a ship embedded in sea ice as part of the MOSAiC expedition, sampling ice and seawater. Saga Svarsdottir/Alfred Wegener Institut hide caption
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algae
New fossils suggest kelp forests have swayed in the seas for at least 32 million years
As much as 90 percent of Lake Okeechobee — one of the largest lakes in the U.S. — is covered with algae. The Everglades Foundation in South Florida where the lake is located decided to create a contest with a prize of $10 million for whomever develops a technology that cheaply removes phosphorus, the main culprit in algae blooms, from freshwater bodies. Greg Allen/NPR hide caption
Figure Out How To Cheaply Fix Algae Blooms And Win $10 Million
Sea algae at low tide along the Irish coast. Seaweed was long a part of Irish cuisine. Nutrient-rich, it helped some survive the Great Famine. Irish cooks reviving the practice say it's not just good for you – it's a zap of flavor from the sea. AdventurePicture/Getty Images/iStockphoto hide caption
Dictyoneurum californicum, which Dennis Judson uses to make the basis of dashi soup stock. Joy Lanzendorfer for NPR hide caption
A great shearwater flies off the coast of Tasmania. John Harrison/Wikipedia hide caption
Why Seabirds Love To Gobble Plastic Floating In The Ocean
Algae covered water at Stuart's Central Marine boat docks on Thursday in Stuart, Fla. Terry Spencer/AP hide caption
This microalgae powder is designed for use in cooking, baking and smoothies. Marketed under the name AlgaVia, the powder is starting to show up as an ingredient in grocery store items. Solazyme hide caption